{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,27]],"date-time":"2025-11-27T06:41:42Z","timestamp":1764225702437,"version":"build-2065373602"},"reference-count":47,"publisher":"MDPI AG","issue":"6","license":[{"start":{"date-parts":[[2021,6,7]],"date-time":"2021-06-07T00:00:00Z","timestamp":1623024000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Symmetry"],"abstract":"<jats:p>Two different operational procedures are proposed for evaluating and predicting the onset of epileptic and eclamptic seizures. The first procedure analyzes the electrical activity of the brain (EEG signals) using nonlinear dynamic methods (the time variations of the standard deviation, the variance, the skewness and the kurtosis; the evolution in time of the spatial\u2013temporal entropy; the variations of the Lyapunov coefficients, etc.). The second operational procedure reconstructs any type of EEG signal through harmonic mappings from the usual space to the hyperbolic one using the time homographic invariance of a multifractal-type Schr\u00f6dinger equation in the framework of the scale relativity theory (i.e., in a multifractal paradigm of motions). More precisely, the explicit differential descriptions of the brain activity in the form of 2 \u00d7 2 matrices with real elements disclose, through the in-phase coherences at various scale resolutions (i.e., as scale transitions), the multitude of brain neuronal dynamics, especially sequences of epileptic and eclamptic seizures. These two operational procedures are not mutually exclusive, but rather become complementary, offering valuable information concerning epileptic and eclamptic seizures. In such context, the prediction of epileptic and eclamptic seizures becomes fundamental for patients not responding to medical treatment and also presenting an increased rate of seizure recurrence.<\/jats:p>","DOI":"10.3390\/sym13061024","type":"journal-article","created":{"date-parts":[[2021,6,7]],"date-time":"2021-06-07T22:23:00Z","timestamp":1623104580000},"page":"1024","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Novel Approach for EEG Signal Analysis in a Multifractal Paradigm of Motions. Epileptic and Eclamptic Seizures as Scale Transitions"],"prefix":"10.3390","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4592-6814","authenticated-orcid":false,"given":"Stefan Andrei","family":"Irimiciuc","sequence":"first","affiliation":[{"name":"National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor Street, 077125 Bucharest, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Andrei","family":"Zala","sequence":"additional","affiliation":[{"name":"Municipal Emergency Hospital Moine\u015fti, 1 Zorilor Street, 605400 Moine\u0219ti, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2474-5133","authenticated-orcid":false,"given":"Dan","family":"Dimitriu","sequence":"additional","affiliation":[{"name":"Faculty of Physics, Alexandru Ioan Cuza University, 700506 Iasi, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4721-4642","authenticated-orcid":false,"given":"Loredana Maria","family":"Himiniuc","sequence":"additional","affiliation":[{"name":"Obstetrics and Gynecology Department, Faculty of Medicine, \u201cGr. T. Popa\u201d University of Medicine and Pharmacy, 700115 Ia\u0219i, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Maricel","family":"Agop","sequence":"additional","affiliation":[{"name":"Department of Physics, \u201cGh. Asachi\u201d Technical University of Iasi, 700050 Iasi, Romania"},{"name":"Romanian Scientists Academy, 54 Splaiul Independentei, 050094 Bucharest, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bogdan Florin","family":"Toma","sequence":"additional","affiliation":[{"name":"Obstetrics and Gynecology Department, Faculty of Medicine, \u201cGr. T. Popa\u201d University of Medicine and Pharmacy, 700115 Ia\u0219i, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2619-8356","authenticated-orcid":false,"given":"Laura Gabriela","family":"Gavril","sequence":"additional","affiliation":[{"name":"Anesthesia and Intensive Care Unit, Regional Institute of Oncology, 700115 Iasi, Romania"},{"name":"Anesthesia and Intensive Care Unit Department, Faculty of Medicine, \u201cGr. T. Popa\u201d University of Medicine and Pharmacy, 700115 Iasi, Romania"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Decebal","family":"Vasincu","sequence":"additional","affiliation":[{"name":"Biophysics and Medical Physics Department, Faculty of Medicine, \u201cGrigore T. 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